公开(公告)号：US09980290B2

公开(公告)日：2018-05-22

申请号：US14988485

申请日：2016-01-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Meilu Lin ,  Jun Zhu ,  Sheng Sun ,  Yan Xin

IPC: H04W74/08

CPC classification number: H04W74/0816

Abstract: In accordance with an embodiment a method for performing carrier sense multiple access with collision avoidance (CSMA-CA) by a station in a wireless communications network includes determining, in accordance with transmission information related to previous transmission attempts, a rate of success for each window section of a plurality of window sections, selecting a window section in accordance with at least the rate of success for each of the window sections and at least one predetermined threshold, and transmitting data after a back-off delay selected from within the selected window section.

公开(公告)号：US20170134235A1

公开(公告)日：2017-05-11

申请号：US15140697

申请日：2016-04-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tao Wu ,  Yan Xin ,  Min Yan ,  Sheng Sun

IPC: H04L12/24 ,  H04L27/26 ,  H04L25/02 ,  H04L5/00

CPC classification number: H04L27/2621 ,  H04L5/001 ,  H04L5/003 ,  H04L5/0053 ,  H04L25/0226 ,  H04L27/2613

Abstract: It is possible to reduce the PAPR of an amplified signal communicated over bonded channels by applying different phase shifts to control fields communicated over the bonded channels. The phase shifts reduce the amount of constructive interaction between the control fields by shifting the peaks of the respective signals in the time domain. The control fields may include short training fields (STFs), channel estimation (CE) fields, or header fields communicated over bonded channels.

公开(公告)号：US20250142542A1

公开(公告)日：2025-05-01

申请号：US19007774

申请日：2025-01-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiao Han ,  Mengyao Ma ,  Yan Xin ,  Chenlong Jia ,  Ming Gan

IPC: H04W72/0446 ,  H04B7/06 ,  H04L1/16

Abstract: This application provides an information indication method and an apparatus. In this application, a sending apparatus generates and sends a first frame, the first frame includes at least one piece of sub-time resource indication information, and each piece of sub-time resource indication information is in a one-to-one correspondence with one of at least one response apparatus. In addition, each piece of sub-time resource indication information includes a time resource at which the corresponding response apparatus sends feedback information for the first frame to the sending apparatus and a time resource at which the sending apparatus sends acknowledgment information for the feedback information to the corresponding response apparatus, so that the at least one response apparatus and the sending apparatus that sends the first frame can simultaneously perform beamforming training, thereby improving effectiveness of beamforming training performed on the sending apparatus and the at least one response apparatus.

公开(公告)号：US20250132880A1

公开(公告)日：2025-04-24

申请号：US18936512

申请日：2024-11-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jung Hoon Suh ,  Osama Aboul-Magd ,  Yan Xin

IPC: H04L5/00 ,  H04B7/0452 ,  H04B7/06 ,  H04B7/08 ,  H04L27/26 ,  H04W84/12 ,  H04W88/08

Abstract: Disclosed herein are devices, systems and methods between a between a plurality of collaborating Access Points (APs) and a receiving station (STA) operating in a wireless local area network (WLAN). The method include the steps of: transmitting, by each AP in the plurality of collaborating APs, a data frame to the receiving STA, each data frame has a preamble portion, the preamble portion including a signal (SIG) field, and the SIG field has a subfield including information representative of a total number of spatial streams transmitted by the plurality of collaborating APs.

公开(公告)号：US12219538B2

公开(公告)日：2025-02-04

申请号：US18313849

申请日：2023-05-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiao Han ,  Mengyao Ma ,  Yan Xin ,  Chenlong Jia ,  Ming Gan

IPC: H04W72/0446 ,  H04L1/16 ,  H04B7/06

Abstract: This application provides an information indication method and an apparatus. In this application, a sending apparatus generates and sends a first frame, the first frame includes at least one piece of sub-time resource indication information, and each piece of sub-time resource indication information is in a one-to-one correspondence with one of at least one response apparatus. In addition, each piece of sub-time resource indication information includes a time resource at which the corresponding response apparatus sends feedback information for the first frame to the sending apparatus and a time resource at which the sending apparatus sends acknowledgment information for the feedback information to the corresponding response apparatus, so that the at least one response apparatus and the sending apparatus that sends the first frame can simultaneously perform beamforming training, thereby improving effectiveness of beamforming training performed on the sending apparatus and the at least one response apparatus.

公开(公告)号：US12166720B2

公开(公告)日：2024-12-10

申请号：US18453459

申请日：2023-08-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jung Hoon Suh ,  Osama Aboul-Magd ,  Yan Xin

IPC: H04L5/00 ,  H04B7/0452 ,  H04B7/06 ,  H04B7/08 ,  H04L27/26 ,  H04W84/12 ,  H04W88/08

Abstract: Disclosed herein are devices, systems and methods between a between a plurality of collaborating Access Points (APs) and a receiving station (STA) operating in a wireless local area network (WLAN). The method include the steps of: transmitting, by each AP in the plurality of collaborating APs, a data frame to the receiving STA, each data frame has a preamble portion, the preamble portion including a signal (SIG) field, and the SIG field has a subfield including information representative of a total number of spatial streams transmitted by the plurality of collaborating Aps.

公开(公告)号：US12074820B2

公开(公告)日：2024-08-27

申请号：US17484709

申请日：2021-09-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jung Hoon Suh ,  Yan Xin ,  Osama Aboul-Magd ,  Kwok Shum Au

IPC: H04L5/00 ,  H04B7/024 ,  H04B7/0456 ,  H04W24/10

CPC classification number: H04L5/0053 ,  H04B7/0456 ,  H04W24/10

Abstract: The present disclosure provides methods and apparatus for coordinated beamforming. An aspect of the disclosure provides a method. The method includes sending, by a first access point (AP) of a plurality of collaborating APs, to one or more stations (STAs) associated with the plurality of collaborating APs, a request for channel state information (CSI) associated with the one or more STAs and the first AP. The method further includes receiving a response including the CSI associated with the one or more STAs and the first AP. The method further includes sending, to a second AP of the plurality of collaborating APs, a sounding request indicating the second AP to request, from the one or more STAs, CSI associated with the one or more STAs and the second AP. The method further includes sharing CSI information between the first and the second AP.

公开(公告)号：US12012606B2

公开(公告)日：2024-06-18

申请号：US18348964

申请日：2023-07-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jung Hoon Suh ,  Yan Xin ,  Osama Aboul-Magd

IPC: C12N15/82 ,  C12N9/22 ,  C12N15/11 ,  H04W84/12

CPC classification number: C12N15/8213 ,  C12N9/22 ,  C12N15/111 ,  C12N15/8203 ,  C12N15/825 ,  H04W84/12 ,  C12N2310/20

Abstract: Methods and systems for outputting data for transmission in a wireless local area network (WLAN) are disclosed. The method comprises generating a trigger frame for a first wireless communication device, the trigger frame comprising one or more subfields of bits at predefined bit locations within the trigger frame that are populated with values for a second wireless communication device to copy into a trigger based frame for transmission to the first wireless communication device.

公开(公告)号：US11876538B2

公开(公告)日：2024-01-16

申请号：US17856773

申请日：2022-07-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Guido Montorsi ,  Sergio Benedetto ,  Wei Lin ,  Yan Xin ,  Ming Gan

IPC: H03M13/00 ,  H03M13/23 ,  H04L1/00

CPC classification number: H03M13/6362 ,  H03M13/235 ,  H03M13/6356 ,  H04L1/0069

Abstract: A convolutional code rate matching method and a communication apparatus are provided. A puncturing pattern of a second codeword at a second code rate is obtained based on a puncturing pattern of a first codeword at a first code rate. A second puncturing location set of the second codeword is a subset of a first puncturing location set of the first codeword. When a transmit device decreases a code rate from the first code rate to the second code rate, a redundant bit is sent at a location of a complementary set of the second puncturing location set relative to the first puncturing location set. Compared with the first puncturing location set, the second puncturing location set may obtain more incremental redundant bits, to decrease a channel encoding rate. This can improve decoding performance of a convolutional code.

公开(公告)号：US11792062B2

公开(公告)日：2023-10-17

申请号：US17333404

申请日：2021-05-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yan Xin ,  Jung Hoon Suh ,  Osama S. Aboul-Magd ,  Kwok Shum Au ,  Mohamed Adel Salem

IPC: H04L27/26 ,  H03M13/25 ,  H04L27/28 ,  H04W84/12

CPC classification number: H04L27/2634 ,  H03M13/255 ,  H04L27/28 ,  H04W84/12

Abstract: The disclosed systems and methods for wireless communication directed are towards (i) encoding data bits to be transmitted over a multiple resource unit (MRU) in a wireless local area network (WLAN), (ii) creating a group of the encoded data bits based on a predetermined criterion, (iii) parsing the encoded bits in the group based on a proportional ratio associated with the MRU, (iv) modulating the parsed encoded data bits to generate modulated encoded data symbols, (v) mapping the modulated encoded data symbols to data subcarriers to generate encoded data subcarriers, the data subcarriers being associated with respective resource units (RUs) of the MRU, (vi) duplicating the encoded data subcarriers within the respective RUs, (vii) shuffling the duplicate encoded data subcarriers across the respective RUs of the MRU, and (viii) transmitting the encoded data subcarriers, and the duplicate encoded data subcarriers over the MRU in the WLAN.